Hello,
Recently a new gigabit network has been added our lustre servers and we
want to add this network to the lustre system.
In Lustre 2.4 there is a "lctl replace_nids" command that in theory
allows to change the NIDs without running --writeconf. However I don't
find any example to how I can use this command. Anybody have used it for
this purpose?
For more info:
We added the new interface in lnet configuration (tcp0):
/etc/modprobe.d/lustre_interface.conf
options lnet networks=o2ib0(ib0),tcp0(eth2)
and we see both interfaces:
lnetctl net show
net:
- net: lo
nid: 0@lo
status: up
- net: o2ib
nid: 192.168.2.252@o2ib
status: up
interfaces:
0: ib0
- net: tcp
nid: 192.168.3.252@tcp
status: up
interfaces:
0: eth2
[root@cmds ~]# lctl list_nids
192.168.2.252@o2ib
192.168.3.252@tcp
However new clients aren't able to connect lustre servers via the new
interface.
LustreError: 15c-8: MGC192.168.3.252@tcp: The configuration from log
'LUSTRE-client' failed (-2). This may be the result of communication errors
between this node and the MGS, a bad configuration, or other errors. See
the syslog for more information.
Thanks!
--------------------------------------------------------
Patricia Santos Marco
HPC research group System Administrator
Instituto de Biocomputación y Física de Sistemas Complejos (BIFI)
Universidad de Zaragoza
e-mail: [email protected] <[email protected]>
phone: (+34) 976762992
http://bifi.es/~patricia/
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